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Thick-film piezoelectric slip sensors for automatic grip control in prosthetic hands

Thick-film piezoelectric slip sensors for automatic grip control in prosthetic hands
Thick-film piezoelectric slip sensors for automatic grip control in prosthetic hands
INTRODUCTION Piezoelectric sensors produce a charge when mechanically deformed (for example through the action of an applied force). This charge decays with time dependant upon the connected electronics. This makes piezoelectric sensors an ideal candidate for detecting the vibrations (change in surface forces) associated with object slip from a prosthetic hand. Most previous work undertaken with piezoelectric sensors to detect object slip from upper limb prosthetics has used polyvinylidene fluoride strips (PVDF) (Dario 1996) (Howe 1989). This type of sensor has a low sensitivity of around 20-30 pCN-1 and comes in a sheet format so would have to be adhered manually to a hand. Thick-film piezoelectric sensors offer a superior alternative for this application with a much higher sensitivity than PVDF of around 130pCN-1 (Torah et al 2005) and the thick-film fabrication technique allows the sensors to be accurately printed onto the flat surface of a prosthesis finger or fingertip.
piezoelectric slip sensor, Southampton Hand
313
Cotton, D.P.J.
1749e011-33ed-47c5-8ed4-c1bc90c9786d
Cranny, A
2ebc2ccb-7d3e-4a6a-91ac-9f089741939e
Chappell, P.H.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
White, N.M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Cotton, D.P.J.
1749e011-33ed-47c5-8ed4-c1bc90c9786d
Cranny, A
2ebc2ccb-7d3e-4a6a-91ac-9f089741939e
Chappell, P.H.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
White, N.M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c

(2007) Thick-film piezoelectric slip sensors for automatic grip control in prosthetic hands. 12th World Congress of the International Society for Prosthetics and Orthotics, Canada. 29 Jul - 03 Aug 2007. p. 313 .

Record type: Conference or Workshop Item (Other)

Abstract

INTRODUCTION Piezoelectric sensors produce a charge when mechanically deformed (for example through the action of an applied force). This charge decays with time dependant upon the connected electronics. This makes piezoelectric sensors an ideal candidate for detecting the vibrations (change in surface forces) associated with object slip from a prosthetic hand. Most previous work undertaken with piezoelectric sensors to detect object slip from upper limb prosthetics has used polyvinylidene fluoride strips (PVDF) (Dario 1996) (Howe 1989). This type of sensor has a low sensitivity of around 20-30 pCN-1 and comes in a sheet format so would have to be adhered manually to a hand. Thick-film piezoelectric sensors offer a superior alternative for this application with a much higher sensitivity than PVDF of around 130pCN-1 (Torah et al 2005) and the thick-film fabrication technique allows the sensors to be accurately printed onto the flat surface of a prosthesis finger or fingertip.

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More information

Published date: 2007
Additional Information: Event Dates: July 29th - August 3rd, 2007
Venue - Dates: 12th World Congress of the International Society for Prosthetics and Orthotics, Canada, 2007-07-29 - 2007-08-03
Keywords: piezoelectric slip sensor, Southampton Hand
Organisations: EEE

Identifiers

Local EPrints ID: 264398
URI: http://eprints.soton.ac.uk/id/eprint/264398
PURE UUID: 606f7052-486d-4268-8732-fe3beeda4187
ORCID for N.M. White: ORCID iD orcid.org/0000-0003-1532-6452

Catalogue record

Date deposited: 09 Aug 2007
Last modified: 06 Jun 2018 13:12

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